Understanding Order
Management

Exchange Order Book

The Exchange does not maintain an order book.

Order Feed Behavior

ICE Gateways Version 7.3.1 and higher use a FIX Order Server
to process order and fill information with the exchange. This connection
uses a bi-directional stream of ordered messages between the ICE
FIX host and the TT Gateway.

Order Server Data Flow

The following is a description of order data flow from the
Order Server to the Exchange host:

The Order Server connects to ICE Gateway using connection
information contained in the hostinfo.cfg file.

The Order Server downloads all order data from ASX.

X_TRADER® logs into the TT Gateway.

X_TRADER® submits an order to the Order Server.

The Order Server sends an ACCEPT/Add message to the trader’s
Audit Trail in X_TRADER®.

The Order Server sends the order to the ICE Gateway host.

Upon receipt, the ICE Gateway host sends an order confirmation
back to the Order Server.

The Order Server sends the order confirmation (as an OK/ADD)
to the trader’s Audit Trail in X_TRADER®.

Fill Server Data Flow

The following is a description of fill data flow from the
Fill Server to the Exchange host:

The ICE Gateway host matches the order.

The ICE Gateway host sends a fill to the Order Server.

The Order Server records the fill in the fills.tbl file.

Simultaneously, the Order Server:

Sends
a fill response to X_TRADER®. X_TRADER® displays a fill in the Audit
Trail. X_TRADER® updates the relevant files and screens (e.g., if it
is a complete fill, the order is removed from the X_TRADER® Order Book).